Optical illusion – line length

The length of the two horizontal lines is identical. They appear to be of different lengths due to the different “arrow heads.” Information and ideas: The students can check the length of the horizontal lines with a ruler.

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Muller lyer illusion hi-res stock photography and images - Alamy

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The Muller-Lyer illusion is a optical illusion in which - stock vector 4140121

The Müller-Lyer illusion is a optical illusion in which two lines of the same length appear to be of different lengths Stock Vector Image & Art - Alamy

Optical Illusions - Learn Definition, Facts & Examples